C. L. Almeida, J. A. M. Santos, C. S. Santos, Francirenildo Andrade Santos, Dmistocles A. Vicente, Andrea Liesen, J. Freitas
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Benzamidoxime-Mediated Crotylation of Aldehydes using Potassium (Z) and (E)-Crotyltrifluoroborates
A highly diastereoselective protocol for the crotylation reaction of aldehydes using potassium (Z) and (E)-crotytrifluoroborates was developed. Benzamidoxime was employed as a renewable catalyst, which was easily recovered through a simple extraction process. This method proved to be simple, fast, regio- and chemoselective for different aldehydes. The corresponding homoallylic alcohols were obtained in good to excellent yields without the need of further purification.
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